It is possible to be infected by kissing a person with tuberculosis and develop the disease. The main causative agent in the development of tuberculosis is Mycobacterium tuberculosis, which spreads in the air through coughing, sputum, sneezing, and loud talking in the population by dispersing microscopic droplets containing Mycobacterium tuberculosis. When inhaled by a healthy person, Mycobacterium tuberculosis grows and multiplies inside and outside of alveolar macrophages, which leads to tuberculosis infection. The likelihood of being infected is high when kissing a person with TB who has come into contact with an infectious agent and when the space is poorly ventilated and one’s immunity is weak. Common symptoms of TB onset are coughing and sputum for more than two weeks or blood in the sputum, or purulent sputum if combined with other bacterial infections. When the lesion involves the pleura, it manifests as chest pain. In addition, fever is also a common symptom of TB, which is usually a prolonged afternoon hot flash, and some patients also have fatigue, night sweats, loss of appetite, and so on. If any of the above symptoms occur, please do not take medication on your own. It is recommended to go to the hospital for diagnosis and treatment under the guidance of a doctor.